Premise Check — lab-hygiene-sentinel

Assumptions at Premise StageURL copied

Assumption	Status	Why
RFID can reliably detect instrument pickup in lab environment	Solid (reframe)	Passive UHF RFID at bench-level is well-proven; on-metal tags resolve metal body interference
Sink/soap sensor can reliably detect hand-wash events	Solid (reframe)	Binary sensor on soap pump or flow sensor on tap; near-100% reliability
Protocol rule maps to a state machine	Solid	pick-up A → must wash → pick-up B is a deterministic sequence
Real-time alerting is feasible	Solid (reframe)	Sensor events are near-instantaneous; no heavy CV inference in the critical path
Multi-person attribution is manageable	Questionable	Requires person-ID (badge RFID, wristband, or camera-based face ID) to distinguish which technician picked up which instrument

2	✦ > Original Idea
3	✦ > Reframe Accepted
4	✦ > Assumptions at Premise Stage